/*******************************************************************************
 * Copyright (c) 2000, 2017 IBM Corp. and others
 *
 * This program and the accompanying materials are made available under
 * the terms of the Eclipse Public License 2.0 which accompanies this
 * distribution and is available at http://eclipse.org/legal/epl-2.0
 * or the Apache License, Version 2.0 which accompanies this distribution
 * and is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License, v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception [1] and GNU General Public
 * License, version 2 with the OpenJDK Assembly Exception [2].
 *
 * [1] https://www.gnu.org/software/classpath/license.html
 * [2] http://openjdk.java.net/legal/assembly-exception.html
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
 *******************************************************************************/

#ifndef TRIVIALDEADBLOCKREMOVER_INCL
#define TRIVIALDEADBLOCKREMOVER_INCL

namespace TR { class TreeTop; }
namespace TR { class Block; }

#include "optimizer/Optimization.hpp"

class TR_TrivialDeadBlockRemover : public TR::Optimization {

   public:
      virtual int32_t perform();
      virtual const char * optDetailString() const throw();


      TR_TrivialDeadBlockRemover(TR::OptimizationManager *manager):
         TR::Optimization(manager) {};

      static TR::Optimization *create(TR::OptimizationManager *manager)
         {
         return new (manager->allocator()) TR_TrivialDeadBlockRemover(manager);
         }

   protected:
      bool isFoldable(TR::TreeTop* tt);
      bool foldIf(TR::Block* b);
      TR_YesNoMaybe  evaluateTakeBranch(TR::Node* n);

};

#endif
